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'(No Model.) 2Sheets8heet 1;

I. SHERGK. Grain Separator; NO. 237.453; Patented Feb. 8, 1881.

lllll 2 Sheets-Sheet 2.

' (N0 Model.)

I, SHBROK. Grain Separator.

Patented Feb. 23,1831.

".FEIERS. FHOTO-LITHOGRAPHEI, WASHINGTON. D, C

U IT D "STATES PATE T ISAAC snERoK, OF FREMONT, OHIO, ASSIGNORTO HIMsELE, GEORGE E.

RAYMOND, E sAME PLAoE, AND WM. E. JOBBINS, OF NEW YORK, N. Y.

' To all whom it may concern GRAIN-SjE PARATOR.

SPEOIFICATIONiormingpart of Letters Patent No. 237,453, dated February 8, 1881.

Application filed May 5, 1880. (No model.)

Be it known that I, ISAAC SHERGK, of Fremont, in the county of Sandusky and State of Ohio, have in vented certain new and useful Improvements in Grain-Separators;' and I do hereby declare the followingto be afull,clear,

and exact description of the invention, such as will enable others skilled in the art to which it pertains to make and use it, reference being had to the accompanying drawings, which form part of this specification.

My invention relates to an improvement in grain-separators, the object being to combine with the shoe and riddles a fan of such construction that, the'blast of air may be directed against the riddle at any desired angle, in order to produce the most effective results in separating the chaff and refuse material from the grain; and with this end in view my invention consists in certain details of construction and combinations of parts, as will hereinafter. he described, and pointed out in the claims.

In the accompanying drawings, Figures 1 and 2 are views in side elevation of that portion of the frame of a separator inclosing the fan, oscillating shoe, and riddle. Fig. 3 is a view in side elevation ofone side of the casing, the fan having been removed therefrom. Fig. at is a plan view of the fan-casingand oscillating shoe. Fig. 5 is an end view of the fan casing removed from the separator. Fig. 6 is a view in perspective of the opposite end of the fan-casing. Fig. 7 is a detached view of the tan. Fig. 8 is a longitudinal section of the fan-casing and plan view of the fan located therein.

A A are the-sides of the separator-frame.

B is a shoe having a discharge-spout, O, attached to the outer end. The outer end of the shoe is suspended by links D, while the opposite end is connected with.the crank-shaft E, so that as the latter revolves an oscillating motion will be imparted to the shoe. Riddles of any desired construction are placed in the shoe and adapted to be moved therewith.

F is a fan-casing having an, open end, G. The opposite end of the casing is provided with a ring, H, and a cross-bar, I, the latter serving as a bearing for one end ofthe fanshaft J, the opposite end of which is journaled in the cross-bar K in the casing. The open end G of the fan-casing fits over and is supported upon an annular flange, L, formed upon orattached to the inner side of the separator-frame.

M is the air-eduction opening of the fancasing, an outwardlyprojecting flange, N, being formed on the fan-casing on the upper side of said eduction-passage, while the casing below said eduction passage or opening is outwardly flaring from the point a to b. The side A of the separator casing or frame is provided with the slots 0 d, to allow of the insertion of the projecting portions N and O of the fancasing. After the fan-casing has been in serted between the sides A A and the open end of the fan-casing forced upon the annular flange L, the casing is. then rotated to bring the air-eduction opening at the proper point to deliver the blast at the desired angle upon the riddle. A plate, 1?, is secured to the side A of the separator-frame by means of screws pp, said plate being provided with the areshaped slots Q Q, through which areinserted the screws R R, the latter engaging the ring H, attached to one end of the fan-casing. By loosening the screws R R the fan-casing may be turned forward or backward a distance equal to the length of the arc-shaped slots and secured in any desired adjustment by tightening the screws R It To the fan-shaft J is secured an arm, S, to the opposite end of which are attached the fans '1, each of which is provided with outwardlyflaring ends U, which project outside the sides of the separator and serve to draw the air into the fan-casing. The flaring ends of the fans serve to materially increase the capacity of the fan-blower without increasing the size of the fan-casing.

It is often desirable to change the direction of the air-blast to cause it to strike the riddle at a certain angle, or to strike the riddle at a certain point in its length. Thisadjustment is desirable, sometimes, owing to the particular adjustment of the shoe or riddle, and some times it is necessary to change the direction of the blast to insure perfect results in the treatment of diflerent kinds or different qualities given .time.

of grain. By simply rotating the fan-easing the blast of air may be directed against any portion of the riddle. The outwardly-flaring portion of the lower portion of the fan-casing allows the air to be forced outwardly from the casing in right lines, or, in other words, the

fan-casing does not operate to break up and" deflect the blast, as is the case in most forms of fan-blowers.

When it is desired to remove the fan for repairs or inspection it may be readily done by simply removing the plate 1? and drawing out the fan-casin g and fan inclosed therein.

If desired, Imay suspend a float over the oscillating shoe by attaching any suitable blade, S, to a rock-shaft, S and to the outer end of the shaft secure a pointer, T, the end of which is located over a graduated index, T, the purpose-of the float being to correctly indicate ,the force of the blast employed at any To the hand or pointer-T may be attached a sliding weight, V, which may be adjusted toward or from the end of the hand,

attached thereto to strengthen the same.

It is evident that slightchanges in thecon- .struction and relative arrangementof parts might be resorted to without de1 )arting from thespirit of my invention, and hence I would have it understood that I do not limit myself to the exact construction and arrangement of 0 parts shown and described; but,

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. The combination, with the fan-casing, of a plate secured to the casing of the machine and provided with arc-shaped slots, and setscrews inserted through said slots and connectedwith a ring on one end of the fan-casin g, substantially as set forth.

2. The combination, with the casing of the machine, havin g an annular-flange on its inner side and a shaft-bearing attached to the easing of the machine, of a fan-casing having a shaft-bearing secured to one end thereof, and

its other end open and adapted to fit upon said annular flange, substantiallyas set forth.

3. An axially-adjustable fan-casing, in-eombination with a fan mounted on a shaft, one end of which is journaled in a bearing connected with the fan casing and its opposite end in a bearing disconnected therefrom, substantially asset forth.

4 The combination, with ,a riddle and a fan adapted to supply a blast of air to the under side of the riddle, of a float located beneath the riddle and attached to a rock-shaft, a

pointer connected with said rock-shaft and an index-plate, and an adjustable weight attached 

